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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(CentOS Issues Fix) OpenSSL Multiple Bugs Let Remote Users Decrypt Data, Deny Service, Obtain Potentially Sensitive Information, and Potentially Execute Arbitrary Code
SecurityTracker Alert ID:  1035805
SecurityTracker URL:  http://securitytracker.com/id/1035805
CVE Reference:   CVE-2016-2105, CVE-2016-2106, CVE-2016-2107, CVE-2016-2108, CVE-2016-2109   (Links to External Site)
Date:  May 9 2016
Impact:   Denial of service via local system, Denial of service via network, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via local system, Execution of arbitrary code via network, User access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to versions 1.0.1t, 1.0.2h
Description:   Multiple vulnerabilities were reported in OpenSSL. A remote user can decrypt data in certain cases. A remote or local user can cause denial of service conditions. A remote user can obtain potentially sensitive information on the target system. A remote or local user may be able to execute arbitrary code on the target application using OpenSSL.

A remote user that can conduct a man-in-the-middle attack can conduct a padding oracle attack against data encrypted with an AES CBC cipher when the target server supports AES-NI to decrypt the data [CVE-2016-2107].

[Editor's note: This vulnerability was introduced in fix for a previous vulnerability known as the Lucky 13 padding attack (CVE-2013-0169).]

Juraj Somorovsky reported this vulnerability.

A remote or local user can supply specially crafted data to trigger an overflow in the EVP_EncodeUpdate() function and cause a heap corruption and cause the target application to crash or potentially execute arbitrary code [CVE-2016-2105]. Applications that call the affected PEM_write_bio* functions may be affected.

Guido Vranken reported this vulnerability.

A remote or local user can supply specially crafted data to trigger an overflow in the EVP_EncryptUpdate() function and cause a heap corruption and cause the target application to crash or potentially execute arbitrary code [CVE-2016-2106]. Applications that call the affected function may be affected.

Guido Vranken reported this vulnerability.

A remote or local user can supply specially crafted ASN.1 data to an application that reads data from a BIO using functions such as d2i_CMS_bio() to trigger a memory allocation error and consume excessive memory on the target system [CVE-2016-2109]. TLS applications are not affected.

Brian Carpenter reported this vulnerability.

An application can supply a specially crafted ASN.1 string longer than 1024 bytes to the X509_NAME_oneline() function on EBCDIC systems to trigger a memory over-read and return arbitrary stack data containing potentially sensitive information [CVE-2016-2176].

Guido Vranken reported this vulnerability.

Impact:   A remote user can decrypt traffic in certain cases.

A remote or local user may be able to execute arbitrary code on the target application that uses OpenSSL.

A remote or local user can cause denial of service conditions on the target system.

A remote user can obtain potentially sensitive information on the target system.

Solution:   CentOS has issued a fix for CVE-2016-2105, CVE-2016-2106, CVE-2016-2107, CVE-2016-2108, and CVE-2016-2109.

x86_64:
5e3c51d681fee532d012c93a5a112885667e775e93ef290d45d8049fcd801d75 openssl-1.0.1e-51.el7_2.5.x86_64.rpm
4b74997828abc8b7272bf326f48eea929caaf8708196fca145b547ef467d2489 openssl-devel-1.0.1e-51.el7_2.5.i686.rpm
6230b86f09b6eac63d2445b2ad1c0b2db6bc0500d678ce945ff791ca12f3a679 openssl-devel-1.0.1e-51.el7_2.5.x86_64.rpm
2c0da28ab356f44800b68fffd8bdd6e77d7bea9cf2360976b6d150e6e4394e4d openssl-libs-1.0.1e-51.el7_2.5.i686.rpm
fa7add3a3f2c6c024359c6b031b0e71dad7ff59422786b27ffbff479413936e0 openssl-libs-1.0.1e-51.el7_2.5.x86_64.rpm
b08aa6e4d8d1b10f2b3d6e3b06e0ab0bcb3a7ba7990f8ca9a454697fafd6fdfe openssl-perl-1.0.1e-51.el7_2.5.x86_64.rpm
757101009b96ace47e31a87390da9a731a3be8fa768f5791b26a5cbeff41297c openssl-static-1.0.1e-51.el7_2.5.i686.rpm
97d662ed69a95e9d919404f10034f17ced2e19e3024567560924743723de532f openssl-static-1.0.1e-51.el7_2.5.x86_64.rpm

Source:
caa1e4aa799629d23f63083c906ee7f37d8db7de81585bd5ce7cb8a444749657 openssl-1.0.1e-51.el7_2.5.src.rpm

Cause:   Access control error, Boundary error
Underlying OS:  Linux (CentOS)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
May 3 2016 OpenSSL Multiple Bugs Let Remote Users Decrypt Data, Deny Service, Obtain Potentially Sensitive Information, and Potentially Execute Arbitrary Code



 Source Message Contents

Subject:  [CentOS-announce] CESA-2016:0722 Important CentOS 7 openssl Security Update


CentOS Errata and Security Advisory 2016:0722 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-0722.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

x86_64:
5e3c51d681fee532d012c93a5a112885667e775e93ef290d45d8049fcd801d75  openssl-1.0.1e-51.el7_2.5.x86_64.rpm
4b74997828abc8b7272bf326f48eea929caaf8708196fca145b547ef467d2489  openssl-devel-1.0.1e-51.el7_2.5.i686.rpm
6230b86f09b6eac63d2445b2ad1c0b2db6bc0500d678ce945ff791ca12f3a679  openssl-devel-1.0.1e-51.el7_2.5.x86_64.rpm
2c0da28ab356f44800b68fffd8bdd6e77d7bea9cf2360976b6d150e6e4394e4d  openssl-libs-1.0.1e-51.el7_2.5.i686.rpm
fa7add3a3f2c6c024359c6b031b0e71dad7ff59422786b27ffbff479413936e0  openssl-libs-1.0.1e-51.el7_2.5.x86_64.rpm
b08aa6e4d8d1b10f2b3d6e3b06e0ab0bcb3a7ba7990f8ca9a454697fafd6fdfe  openssl-perl-1.0.1e-51.el7_2.5.x86_64.rpm
757101009b96ace47e31a87390da9a731a3be8fa768f5791b26a5cbeff41297c  openssl-static-1.0.1e-51.el7_2.5.i686.rpm
97d662ed69a95e9d919404f10034f17ced2e19e3024567560924743723de532f  openssl-static-1.0.1e-51.el7_2.5.x86_64.rpm

Source:
caa1e4aa799629d23f63083c906ee7f37d8db7de81585bd5ce7cb8a444749657  openssl-1.0.1e-51.el7_2.5.src.rpm



-- 
Johnny Hughes
CentOS Project { http://www.centos.org/ }
irc: hughesjr, #centos@irc.freenode.net
Twitter: @JohnnyCentOS

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CentOS-announce mailing list
CentOS-announce@centos.org
https://lists.centos.org/mailman/listinfo/centos-announce
 
 


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